Roller hockey puck



FIG.1 is a top view of a roller hockey puck showing my new design, the bottom view is identical to the top view;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof, the left side view thereof is identical; and,

FIG. 4 is a rear view thereof. 

The ornamental design for a roller hockey puck, as shown and described. 